Diff: main.cpp

Revision:

0:2f530d7169a6

Child:

1:61415f07477d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Jul 30 20:26:29 2017 +0000
@@ -0,0 +1,73 @@
+#include "stm32f103c8t6.h"
+#include "mbed.h"
+#include "USBMIDI.h"
+#include "PinDetect.h"
+
+#define SWITCH1_PIN PB_5
+#define LED_DURATION 20000
+
+USBMIDI *midi;
+Serial *serial;
+DigitalOut *led1;
+int led_ontime;
+Timer *timer;
+
+class SwitchHandler {
+public:
+    SwitchHandler(int ctrl, int ch = 1, int on = 0, int off = 127) :
+        control(ctrl), channel(ch), on_value(on), off_value(off), b_pressed(false), b_released(false) {};
+    
+    void handle_pressed(void) {
+        b_pressed = true;
+    }
+
+    void handle_released(void) {
+        b_released = true;
+    }
+
+    void handle_events() {
+        if (b_pressed) {
+            led1->write(0);
+            led_ontime = timer->read_us();
+            serial->printf("Switch pressed: controller=%d channel=%d value=%d\r\n", control, channel, on_value);
+            midi->write(MIDIMessage::ControlChange(control, on_value, channel));
+            b_pressed = false;
+        } else if (b_released) {
+            led1->write(0);
+            led_ontime = timer->read_us();
+            serial->printf("Switch released: control=%d channel=%d value=%d\r\n", control, channel, off_value);
+            midi->write(MIDIMessage::ControlChange(control, off_value, channel));
+            b_released = false;
+        }
+    }
+private:
+    bool b_pressed, b_released;
+    int control, channel, on_value, off_value;
+};
+
+int main() {
+    // Configure system clock (72MHz HSE clock, 48MHz USB clock)
+    confSysClock();
+
+    timer = new Timer;
+    led1 = new DigitalOut(LED1);
+    led1->write(1);
+    serial = new Serial(PA_9, PA_10);
+    midi = new USBMIDI(0x1f00, 0x2012, 0x0001);
+    SwitchHandler handler1(1, 10);
+
+    PinDetect btn(SWITCH1_PIN);
+    btn.attach_asserted(&handler1, &SwitchHandler::handle_pressed);
+    btn.attach_deasserted(&handler1, &SwitchHandler::handle_released);
+    btn.setSampleFrequency();
+    timer->start();
+
+    while (true) {
+        handler1.handle_events();
+        wait_ms(10);
+        if (timer->read_us() - led_ontime >= LED_DURATION) {
+            led_ontime = 0;
+            led1->write(1);
+        }   
+   }
+}